[Asterisk-Dev] MP1327 trunked radio channel...

[James Sharp]

Axel Schlueter wrote:
> Hi,
> 
> I'd like to implement a channel to connect asterisk to a
> MPT1327 analogue trunked radio. I hadn't implemented something
> for asterisk before, could you give me some pointers for
> documentation ? I studied the implemantion of chan_oss.c,
> but I'm not quite sure if it would be better to create a
> new channel or instead write a zaptel device driver. Any
> hints ? And one last question: I will need a "Push to talk"
> functionality. Is there any infrastructure in asterisk which
> supports PTT-like operation for radios ? I don't want to use a
> VOX PTT. I've seen the "key/unkey radio" control frames in
> the IAX2 protocol, could these be used by an IAX client to
> trigger PTT ?
> 
> TIA,
> Axel

What part of the MPT system are you trying to implement with Asterisk? 
A system controller or just a site-to-site audio transport mechanism?